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PLEASE HELP FAST!!

When two or more simple machines work together, they are called a(n) ____.

a. compound machine

c. screw

b. effort machine

d. simple machine

User Kolchanov
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2 Answers

5 votes

Answer:a

Step-by-step explanation:

User Halileohalilei
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2 votes

Answer:

compound machine

Step-by-step explanation:

User Ray Fischer
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